The team said he is doing well in a local hospital. Arians served as interim coach for 12 games this season, going 9-3, when head coach Chuck Pagano was undergoing chemotherapy treatment for leukemia.

Pagano said after Sunday's 24-9 loss to the Ravens that Arians would remain hospitalized for observation and likely rejoin the Colts in Indianapolis on Monday.

Quarterbacks coach Clyde Christensen called the plays in Arians' absence.

CBS Sports opened its game broadcast by saying Arians was rushed to a local hospital after complaining of headaches and nausea. The report said Arians was taken on a gurney in front of the team around 9:30 a.m. ET to an awaiting ambulance following a brief "episode."